Pan connecting and reenforcing strip



June 10, 1930. SCHULTZ 1,762,563

PAN CONNECTING AND REENFORCING STRIP Filed Nov. 20, 1928 gwoentoz a, I MW Patented June 10, 1930 UNITED STATES PATENT OFFICE FRED SCHULTZ, or CINCINNATI, OHIO, ASS

iGNOR TO THE LOCKWOOD MANUFACTUR- ING COMPANY, OF CINCINI-TATZ, OHIO, A CORPORATION OF GI-IIO PAN CONNECTING AND REENFOROING STRIP Application filed November 20, 1928.

This invention relates to a connecting strip or rail for use with multiple baking pans. An object of the invention is to provide such a strip the exterior surface and adjacent edges of which are smooth and free from all grease and dirt-catching apertures, rivet heads, lugs or the like.

Another object is to provide a connecting strip which likewise strengthens and protects exposed surfaces of the pans in a baking unit.

Another object is to provide a bumper to protect and strengthen the top edges of the P Another object is to provide a strip of the class described in which the means used to fasten the strip to the pans, are protected from contact with other objects whereby loosening of such means would result.

Another object is to provide a strip of the class described which presents no sharp points injurious to the hands and clothing of workmen using the pans.

These objects are attained by the means described herein and set forth in the accompanying drawings, in which:

Fig.1 is a side elevational view of a baking unit comprising a strip of the present invention, parts being broken away.

Fig.2 is a view on line 22 of Fig. 1.

Fig. 8 is a detail view showing a fastening means for securing the strip to the pans, parts of the strip being broken away.

One of the customary methods of forming a baking pan is to turn up parallel portions of a stamped piece of suitable sheet metal, there being two turned-up end portions and two turned-up side portions. Extensions of the side portions are folded at right angles against the outer faces of the end portions, and secured in that position, thus forming closed corners on the pan. The top edges of the pan are then suitably finished off, frequently by rolling the edges outwardly upon a wire or other strengthening piece which continues around the four edges of the pan.

' A number of pans thus fashioned are then connected together to form a baking unit,

Serial No. 320,704.

and it is with this step that the present invention is concerned.

Heretofore, the usual method of forming a unit has been to bind the pans together by securing single strips of metal along the outer end faces of a number of pans, one strip to each side of the unit. The lugs or rivets used to secure these strips to the pans present either depressions or studs along the strip, into or around which dirt and grease can collect, a most undesirable feature where the most sanitary conditionsare required. Moreover, the lugs and studs are exposed and become loosened by Contact with other objects, and are also a source of trouble in that they tend to scratch the hands and catch gloves or clothing of persons using the pans.

The present invention overcomes these disadvantages by providing a double strip for binding the pans together. The outermost member of this double strip covers the inner member which is secured to each individual pan of the unit by rivets, lugs or spot Welds, as before explained. The strip may consist of two separate members, in which case the outer member has its upper longitudinal edge turned in over the adjacent top edge of the inner member. Or the strip may consist of a single piece doubled upon itself on a longitudinal line. In either method the same beneficial result is accomplished, since the fastening means, depressions, and angled edges of the inner member are completely covered so that the disadvantages set forth above are done away with. The strip of the present invention entails other desirable features which will appear in the course of the following description.

The second method of forming the strip, that is by use of a single piece of material, is believed to be preferable and it is that method which is herein set forth. Referring to the drawings the metal pans 5 and 6 are shown as formed by the folding method before described, the said sides 7 having integral endwise extensions which are turned at right angles against the end portion 8, of the pans, to provide the end folds 9. The rolled edges 10 inclose the strengthening wire 11, said edges likewise serving to press the end folds 9 against the end portion 8, as illustrated at 12 in Fig. 2. A spacer 13 is secured between each pair of pans in the unit, between the side edges thereof.

The strip 14- ot the present invention is formed of suitable metal or bandfiron and has the inner member land outer member 16.

One or the strips 14 is positioned along each side of a unit of pairs, that 1s, along the aligned ends'of a plurality of pans. 'The member 15 is herein I 17 l wing been thus initially inserted, the

strip 1% is moved upwardly, until its top edge is just beneath the edges ofthe' pans. 'lherealter, cars 17 and member are pressed tower-done another to firmly ,grip'folds 9 between them. Any desirable method of secur ing. the strip 1% to the pans, may be used, such as byrivets, extending through into the, pan ends. I

Guter member 16 consists of the upper longitudinal portion of strip 1%, member 16 be ing. bent down against the exterior side of member 15. Strip 1% is bent so as to present the bulbed or beaded edge 18 which extends outwardly from the pans somewhatfarther 3 than edges 10, thus, protecting the latter from becoming dented and misshapen by contact with. other objects. The lower edge of member 16 extends below the adjacent edge of member 15, and is pressed inwardly against the pans. At tl e upper corners of the two ends of strip 14 an extension 20 of member 16 is provided. After strip l l is secured beneath edges 10, these extensions 20 are bent about the adjacent corners of the end panso-f the unit, after which an end strip 21 may be superimposed on extensions 20 and a rivet 24 or other means, utilized to secure both the extensions 20 and the end strips 21, to the sides of the end pans. Itwill be ob served by reference to Fig. 1 that member 15" is cut vertically at its ends 22. lihe ends of str p 16 overlap ends'ZQ, and edges Qrlofstrip 16 are bent a a'inst the pans to preclude .the'

entry oi dirt, grease and the like. It is evident that strip may be of any length so that any desired number of pans may be ed together in this way." I

strafz 7 Str let greatly increases the strength and durability ofa baking unit; its bulbed edge acts as a. bumper to protect the-top edges of thepans,and its smooth outer surface collects no fgreasefnor dirt and doeslnot injure the hands and clothing ofpersons handling the I pans. 1

shown as secured to the nmates What is claimed is:

the pans of the unit, and the loweredge of the outer member overlapping the lower edge o't the inner member. I V v 2. A means for connecting and ire-enforc ing the pans of baking unit, said means comprising a metal strip bent longitudinally upon itself to provide two members, one member adapted to be secured to the ends of the pans, and the secondmember superimposed upon the first'member andhaving its lower ed e and its endedges overlapping the like edges of the first member the upper joined edge of the two members being positioned adjacent the top edges of the pansiand extending outwardly beyond said edges.

3. A strip for connecting the pans of a bak in unit and comprising a member adapted to be secured to the pans, and a covering member superimposed on and overlapping the edges of said first'member for prevent-- T ,3 th entry of dirt and the like between Sit-1d two members. a 1 v V V 4-. The combination with multiple baking thepans andcomprising a strip member adpted to be secured to the pans," and a sec- 7 pi; s, of means for connecting and reenforcend strip member joinedto thefirstmember adjacent the upper longitudinal portion thereoi,,the second member covering the first I edges thereof.

6. A pan-connecting strip comprising an innermemberadapted for attachment toa pluralityof pans, and aniouter member providing anunbroken outer surface and adapted to be attached to and to cover said-inner member, the lower edge portion'oi 'the outer member being adapted. to overlapand to be bent inwardly beneath, the like portion of the inner member:

In testimony whereof,-l have hereuntoisubscr bedmy name this 19th day of November,

FRED SCHULTZ}. 

